You want it with APA. (although right now would be a bad idea). The NMB can rule it a single transportation system. Here's the criteria:

Single Transportation System
The Board determines the existence of a single transportation system based upon Section 19 of the Board’s Representation Manual. Section 19.4 provides that “[a]ny organization or individual may file an application, supported by evidence of representation or a showing of interest seeking a determination
whether a single system of transportation exists.” Section 19.501 states that actions by the Carriers constitutes the existence of a single transportation system, such as published combined schedules or combined routes; standardized uniforms; common marketing, markings, or insignia; integrated essential operations such as scheduling or dispatching; centralized labor and personnel operations; combined or common management, corporate officers, and board of directors; combined workforce; and common or overlapping ownership.

-Flight Schedules are combined and published as transparent to the customer
-Standardized Uniforms even incuding the forced wearing of AA lanyards. Very minor differences, invisible to the average cutormer
-Aircraft are all owned by AA now instead of by each individual airline
-Shared Training Facilities
-AAG HR is the repository of all records. Unhirable at one, Unhirable at all.
-AAG has Jerry Glass as their centralized labor relations stooge
-Common Management? Heck, Envoy's CEO is an AAG Corporate Officer
-Same Board of Directors
-Same ownership
and now, we can add....
-Single Interview, cradle to grave.

How they can argue it is still separate is only because ALPA won't cut their own throat and lose 5,000 members.

Here is how it worked with the Southwest & AirTran guys
https://nmb.gov/NMB_Application/wp-c...SWAPA-ALPA.pdf

Here's the one from APA and USAPA....
https://storage.googleapis.com/dakot...-APA-USAPA.pdf

Here's the one for the Simulator Engineers & Mechanics
http://www.twu.org/wp-content/upload...UI%20(4)_1.pdf

Point being, with the pipeline program they created a single point of entry to go from college to 777 captain. It is not preferential hiring like at Delta and United where you still must interview and pass all their entry standards.

In fact, before the AA HR standards changed you HAD to have a bachelors degree to be hired at AA, UNLESS you were flowing from their regional (Because you were already hired) you just had a deferred start date based upon your seniority.